What special language event happened in Nicaragua after the Sandinista regime took power in 1979?
a. Deaf children were mainstreamed into regular schools.
b. A sign language was developed at schools for the deaf.
c. Russian was made the official language of Nicaragua.
d. Educators tried to teach Spanish to apes and monkeys.
Question 2
Cohort effects in cross-sectional studies
a. enhance the validity of the research.
b. do not occur; cohort effects are irrelevant.
c. confound the interpretation of age effects.
d. are a problem for observational studies only.
